| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Cannings, Oliver G (10)
|
FGAJSC |
|
40.65 |
- |
| 2 |
Aguila, Jorge E (10)
|
FGMWA |
46.58 |
46.66 |
0.08 |
| 3 |
Fothergill, Liam (9)
|
FGMWA |
50.84 |
48.60 |
-2.24 |
| 4 |
Park, Brandon (10)
|
FGMWA |
53.63 |
48.97 |
-4.66 |
| 5 |
Fanjul, Benjamin G (10)
|
FGCANE |
56.82 |
49.33 |
-7.49 |
| 6 |
Almuina, Brandon * (8)
|
FGMACM |
1:03.45 |
52.00 |
-11.45 |
| 7 |
Romeo, Lucas J (9)
|
FGMACM |
54.77 |
52.30 |
-2.47 |
| 8 |
Cavani, Emiliano * (10)
|
UNAT |
55.06 |
52.81 |
-2.25 |
| 9 |
Kokidko, Nicolas N (10)
|
UNAT |
|
52.91 |
- |
| 10 |
Ilonta, Nicolas P (8)
|
FGSFTL |
|
53.08 |
- |
| 11 |
Villar, Ilan W (9)
|
FGCANE |
56.97 |
53.54 |
-3.43 |
| 12 |
Mantilla, Guillermo (8)
|
FGMWA |
|
53.59 |
- |
| 13 |
Meneses, Matthew L (8)
|
FGMACM |
|
53.72 |
- |
| 14 |
Negrin, Axel (10)
|
FGGRSC |
55.13 |
54.05 |
-1.08 |
| 15 |
Park, Jayden (8)
|
FGMWA |
57.06 |
54.58 |
-2.48 |
| 16 |
Adan, Matthew S (8)
|
FGMACM |
1:04.79 |
55.38 |
-9.41 |
| 17 |
Adan, Daniel S (9)
|
FGMACM |
1:00.00 |
55.45 |
-4.55 |
| 18 |
Martinez, Leonardo * (10)
|
FGMACM |
1:11.53 |
57.10 |
-14.43 |
| 19 |
Dogan, Alessandro (9)
|
FGSFTL |
|
57.38 |
- |
| 20 |
Jang, Harrison (10)
|
FGMWA |
|
57.55 |
- |
| 21 |
Lozano, Julian (10)
|
FGGRSC |
1:09.19 |
57.89 |
-11.30 |
| 22 |
Aguirre, Alessandro L (10)
|
FGMS |
|
1:01.87 |
- |
| 23 |
Ponce, Sebastian M (8)
|
FGMACM |
|
1:04.32 |
- |
| 24 |
Riquenes, Matthew A (8)
|
FGMACM |
1:12.30 |
1:04.51 |
-7.79 |
| 25 |
Bernten, Simon I (9)
|
FGAJSC |
|
1:04.69 |
- |
| 26 |
Lenz Cesar, Guilherme B (9)
|
FGGRSC |
|
1:04.81 |
- |
| 27 |
Hampton, Trent D (9)
|
FGGRSC |
1:06.16 |
1:05.75 |
-0.41 |
| 28 |
Bravo, Antonio E (10)
|
FGSDST |
1:21.25 |
1:06.09 |
-15.16 |
| 29 |
Barguez, Jacob A (9)
|
FGMACM |
|
1:06.14 |
- |
| 30 |
Duran, Andy A (7)
|
FGMACM |
|
1:08.55 |
- |
| 31 |
Capote, Alejandro (10)
|
FGMS |
|
1:09.72 |
- |
| 32 |
Del Ponte, Gianluca (8)
|
FGOSC |
|
1:22.27 |
- |
|
Linares, Jesus D (10)
|
FGMACM |
48.41 |
DQ |
- |
|
Morales Harrison, Domingo A (7)
|
FGGRSC |
|
DQ |
- |
|
Veloso, Nicholas A (9)
|
FGCANE |
|
DQ |
- |
|
Isunza, Jacob (7)
|
FGOSC |
|
DQ |
- |
|
Caraballo, Nicolas E (9)
|
FGGRSC |
1:06.39 |
NS |
- |
|
Macedo, Eric M (7)
|
FGGRSC |
59.94 |
NS |
- |
|
Rincon, Jose I (10)
|
FGMWA |
59.92 |
NS |
- |
|
Corte Hernandez, Gabriel A (10)
|
FGMWA |
56.73 |
NS |
- |
|
Piquet, Felipe A (8)
|
FGGRSC |
|
NS |
- |
|
Pineda, Bryan * (8)
|
FGMACM |
|
NS |
- |
|
Garcia, Alan N (10)
|
FGMACM |
1:08.10 |
NS |
- |
|
Dame, Gabriel W (8)
|
FGCANE |
1:08.06 |
NS |
- |